Quote:
Originally Posted by Dave Noll
That's powers the heater for the sensor. Without the heater the sensor needs the exhaust to get it hot enough to produce a signal. Which is how the original single wire O2 sensors worked. Any damage to the sensor gets back to the age old argument, does leaded gas actually ruin O2 sensors?
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Yes, it absolutely does. They are a consumable part for the dyno. We have had this conversation with Superflow in the past and they agree that there is no fix, the leaded fuel just flat doesn't work with them longterm. We even tried reusing malfunctioning sensors on pump gas motors to see if they would 'clean out', no luck. Bosch seems to be the best but we have a large pile of burned out ones.